JPH0519986Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a mounting structure provided in an electrical device such as a capacitor.

(Prior Art) In the conventional mounting part shown in FIG. 4,
4, and a movable body 7 having a claw portion 6 is slidably held in a guide groove 5 formed in the mounting surface 2 on the other side of the recess 3. The movable body 7 held in the guide groove 5 has elastic arms 8, 8 extending on both sides of the movable body 7, which are connected to engagement walls 9, 9 on the other side of the recess 3 and projections 10, 10 provided on the inner surface of the recess 3. The configuration is such that it is positioned between the Furthermore, mounting screw insertion holes 11, 11 are provided at two locations on one side of the mounting surface 2. These mounting screw insertion holes 11, 11 are inserted into the sockets 12, 12 protruding from the outer box 1, as shown in the figure.
There are cases where it is opened in a state where it is opened through the outer box 1 itself, and cases where it is opened in a state where it penetrates the outer box 1 itself. This type of mounting structure is disclosed in, for example, Japanese Patent Laid-Open Nos. 62-86799 and 62-86800.

There are two methods for mounting an electrical device having such a mounting portion: one method uses the rail 13, and the other method uses mounting screws (not shown).

When using the rail 13, one end edge 14 of the rail 13 is fitted into the grooves 4, 4, the rail 13 is fitted into the recess 3, and at the same time the elastic arms 8, 8 which are in contact with the engaging walls 9, 9 are inserted. The claw portion 6 of the movable body 7 may be engaged with the other end edge 15 of the rail 13 by utilizing the elasticity of the movable body 7, and in the attached state, the movable body 7 engages with the groove portion 4 due to the restoring force of the elastic arms 8, 8. They work together to elastically clamp the rail 13.

When using mounting screws, use the mounting screw insertion hole 1
Tighten the mounting screws inserted through holes 1 and 11 to the mounting plate, etc.

(Problem to be solved by the invention) However, when conventional electrical equipment is mounted on a mounting plate etc. using mounting screws, the mounting screws are tightened only at two locations on one side of the mounting surface 2.
I was worried that the installation would become unstable.

This idea was made in view of the above circumstances, and by using the above-mentioned movable body to tighten the mounting screws, it provides a mounting structure for electrical equipment that maintains a stable mounting state even when mounted using the mounting screws. The purpose is to

(Means for solving the problem) In addition to the conventional structure, the structure of the mounting part of the electrical equipment of this invention is such that the rear part of the movable body is extended so as to protrude outward from the mounting surface, and the extended part A mounting screw insertion hole is provided in the.

(Function) According to this configuration, the mounting screw is inserted through the mounting screw insertion hole opened on one side of the mounting surface and the mounting screw insertion hole opened on the extension part of the movable body protruding to the other side of the mounting surface. By tightening the electrical equipment, the electrical equipment can be mounted on the mounting plate, etc., and the mounting state becomes stable.

(Embodiment) FIG. 1 is an exploded perspective view of an electrical device having a mounting structure according to an embodiment of the invention, in which the lower surface of the outer box 20 of the electrical device and the back surface intersecting the lower surface are the first mounting surface 21 and the rear surface intersecting the lower surface, respectively. 2 mounting surface 22.
The first mounting surface 21 corresponds to the mounting surface 2 described in the conventional example (see FIG. 7), and includes a recess 23 into which the rail 13 is fitted, and two grooves 24 on one side of the recess 23; 24 are provided. In addition, a guide groove 25 is formed on the first mounting surface 21 on the other side of the recess 23.
is formed. The movable body 26 has a claw portion 2 at its tip.
7 and elastic arms 28, 28 extending on both sides.
The present invention is similar to the conventional one in that the rear part thereof is extended further rearward than the conventional one, and the difference is that the extending portion 29 is provided with a mounting screw insertion hole 30. Further, stepped protrusions 31, 31 are provided on both ends of the movable body 26, and these protrusions 31, 31 are fitted into grooves 32, 32 formed on both sides of the guide groove 25. It can be done.

Two protrusions 33 and 34 are provided on the inner surface of the recess 23 at two locations in the width direction of the recess 23. Both of these protrusions 33 and 34 are
Elastic arm 2 of movable body 26 held in guide groove 25
8, 28 from the guide groove 25 to the movable body 26
It has the function of preventing the material from falling off. As shown in FIGS. 2 and 4, the elastic arms 28, 28 are connected to the engaging walls 35, 35 on the other side of the recess 23.
Between the protrusions 33, 33 on the side closer to 5, 35 (hereinafter referred to as
This is called the first position. ), the extending portion 29 is projected to the outside of the second mounting surface 22, and the elastic arms 28, 28 are in contact with the other protrusions 34, 34 as shown in FIG. When the extended portion 29 is positioned in contact with the second mounting surface 2 (hereinafter referred to as the second position),
2. It is configured so that it does not protrude outside.

Also, two mounting screw insertion holes 36, 36 are provided on one side of the first mounting surface 21, as in the conventional case. These mounting screw insertion holes 36, 36 are connected to brackets 37, 3 protruding from the outer box 1, as shown in the figure.
7, or it may be opened so as to penetrate through the outer box 1 itself. Furthermore, mounting screw insertion holes 38 and 39 are provided on one side and the other side of the second mounting surface 22.

Next, the action will be explained.

With the movable body 26 positioned at the first position,
One end edge 1 of the rail 13 as shown in FIGS. 4 and 5.
4 into the grooves 24, 24, the rail 13 is fitted into the recess 23, and at the same time, using the elasticity of the elastic arms 28, 28 that are in contact with the engaging walls 35, 35,
The claw portion 27 of the movable body 26 is connected to the other end edge 15 of the rail 13.
When engaged with the elastic arms 28, 28 as in the conventional case,
Due to the restoring force, the movable body 26 cooperates with the grooves 24 and 24 to elastically clamp the rail 13. Therefore, the same mounting stability as the conventional one is ensured. Note that the rail 13 is fixed to a mounting plate 40 such as a power distribution board.

When installing without using the rail 13, the second
3, when the movable body 26 is positioned at the first position, the mounting screw insertion hole 30 of the extending portion 29 of the movable body 26 protruding outward from the second mounting surface 22 and , insert the mounting screws 41 , 42 , 43 into the mounting screw insertion holes 36 , 36 provided at two locations on one side of the first mounting surface 21 , and attach these mounting screws 41 , 42 , 43 to the mounting plate 40 . tighten. In this way, the first mounting surface 21
Since it is fixed to the mounting plate 40 at two locations on one side and at one location on the other side, the mounting condition is more stable than in the conventional case where only two locations on one side can be fixed.

Furthermore, when the movable body 26 is positioned at the second position as shown in FIG. It can be attached while being pressed against the plate 40. In addition, in FIG. 6, 44,
45 is a mounting screw.

(Effects of the invention) According to this invention, it is possible to provide electrical equipment such as capacitors that has the same mounting stability as before when mounted on a rail, and has a more stable mounting condition than before when mounted using mounting screws. There are advantages that can be achieved.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of an electrical device having a mounting structure according to an embodiment of this invention, Fig. 2 is an explanatory diagram showing a mounting state using mounting screws, and Fig. 3 is taken along the - line in Fig. 2. An enlarged cross-sectional view, Figure 4 is an explanatory diagram showing a mounting state using a rail, Figure 5 is an enlarged cross-sectional view taken along the - line in Figure 3, and Figure 6 shows a mounting state using the second mounting surface. The explanatory drawing, FIG. 7, is an exploded perspective view of an electric device having a conventional mounting structure. 13...Rail, 14...One end edge of the rail, 1
5...Other end edge of the rail, 21...Mounting surface, 23...
... recess, 24 ... groove, 26 ... movable body, 29 ...
...Extending portion, 30, 36...Mounting screw insertion hole.

Claims (1)

[Scope of utility model registration request] A mounting screw insertion hole is provided on one side of the mounting surface having a recess into which the rail is fitted, and a groove into which one end edge of the rail is fitted is provided on one side of the recess, and A movable body is held on the mounting surface and engages with the other end edge of the rail and elastically clamps the rail in cooperation with the groove. A mounting structure for an electrical device, characterized in that the mounting surface extends outwardly from the other side of the mounting surface, and has a mounting screw insertion hole formed in the extended portion.